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A new method to design parity-check matrix based on Henon chaos model is presented. The designed parity-check matrix is with rather random behavior. Simulation results show that the proposed method makes an improvement in bit error rate (BER) performance by 0.4 dB compared with that of Luby for AWGN channel. The proposed method decreases the complexity of decoding significantly,and improves the error correcting performance of LDPC codes. It has been shown that Henon chaotic model is a powerful tool for construction of good LDPC codes,which make it possible to apply the LDPC code in real communication systems.
A new method to design parity-check matrix based on Henon chaos model is presented. Simulation results show that the proposed method makes an improvement in bit error rate (BER) performance by 0.4 dB compared with that of Luby for AWGN channel. The proposed method reduces the complexity of decoding significantly, and improves the error correcting performance of LDPC codes. It has been shown that Henon chaotic model is a powerful tool for construction of good LDPC codes, which make it is possible to apply the LDPC code in real communication systems.